Roval wheels has just launched its brand new Traverse Alloy wheels – and while it sounds and looks like there’s nothing new, the hubs (literally) at the centre of it all have been upgraded with DT Swiss Star Ratchet LN system. This is an 18 tooth ratchet drive system, but it’s upgradable (and apparently retrofittable) up to the super clicky 54T Star Ratchet system.
The hubs are made by DT Swiss and based on the DT Swiss 370, 6-bolt hub. The Star Ratchet LN system uses a single sided, sprung ratchet, which keeps things simple and as there are no pawls to get stuck, it should give a super-reliable engagement.
Apart from the star ratchet upgrade, not much has changed – the alloy Roval rims are 30mm internal widths, tubeless ready and come in six bolt Boost width only. They do, refreshingly, come in 27.5 and 29in sizes, unlike the fancy Control SL wheels…
Roval has this to say about the upgradability of other, older Roval wheel owners:
“Riders can further upgrade through DT Swiss’s high-end Ratchet’s, all the way to 54 tooth engagement. The Ratchet LN system also allows older Roval wheels to be upgraded for a fraction of the cost of a new wheel, keeping more rims, and hubs rolling longer.
With an internal rim width of 30mm, ideal for wider tires; this wheelset can handle both days at the bike park and epic climbs. Dependable DT 370 Ratchet LN internals, sealed bearings, spokes of equal length on each side for both front and rear wheels are just a few of the provisions that make these wheels durable, serviceable, and hassle-free.“
Product Specifications:
- 30mm Internal Rim Width
- Alloy Clincher
- Tubeless Ready
- Roval CNC machined “Step Flange” DT Swiss 370 6-bolt Hub – 18t Ratchet LN System
- Thru Axle: 110x15mm & 148x12mm
- 29 Front Right/Left: 283mm/283mm
- 29 Rear Drive-Side/Non-Drive: 283mm/283mm
- 27.5 Front Right/Left: 266mm/266mm
- 27.5 Rear Drive-Side/Non-Drive: 266mm/266mm
- Set Weight: 29 -1870g; 27.5 – 1830g
- MSRP: £650.00 – per wheelset
The info and gubbins is all over at Roval’s website – rovalcomponents.com and they should be appearing in the UK at Specialized dealers and on future bikes, we’re assuming…
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https://www.dtswiss.com/en/wheels/wheels-technology/ratchet-ln-technology
This is the old dual sided spring rather than the single side system..
Looks like a possible upgrade path for 370 hubs (I know it could be done anyway but with some caveats).
“This is the old dual sided spring rather than the single side system..”
When did this change? I thought some of my 240s were pretty recent but pretty sure they all have springs on both sides of the ratchets.
Intrigued by this as I’ve got some Giant road wheels (c5 years old) that have ‘DT internals’ and sound like they might have a broken pawl
Ratchet EXP used on the 180 and 240. Launched May 19 for 180s and last year for 240s.
Yeah, I understood it the same as Nixie- this is basically the old style dual ratchet but put into a 370 which is normally a 3-pawl.
Which you could do already because the ratchet ring and 3 pawl ring are interchangable, but, this is better since retrofitting 240/350 parts was a little bodgy and meant you lost the seal between the freehub and hub shell (since it’s in the hub body on a 240/350). Whereas this seems to use a modified 240/350 style freehub with a seal in it. Quite a nice thing I think, basically just takes something people were already doing DIY and makes it factory quality
So I think this article is a bit wrong, but not drastically. (the other thing is, it kind of implies that you can put the single-sided EXP pawls into an older hub which I don’t think is true)